rstudio可以很好地显示汉字，但不能 问题描述

代码如下：

library(shiny)
library(Ruchardet)

ui <- fluidPage(
   # Application title
   titlePanel("中文测试"),
   textOutput("test")
)

server <- function(input, output) {
  output$test <- renderText({
    # detectFileEncoding: detect the encoding of file
    paste(detectFileEncoding("line.txt"),
          readLines("line.txt"), 
          "人")
  })

}

# Run the application 
shinyApp(ui = ui, server = server)

附加信息 它运行在一个docker容器中，中文字体已经安装在apt get install fonts wqy zenhei中。 以下是会话信息：

R version 3.4.0 (2017-04-21)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Debian GNU/Linux 9 (stretch)

Matrix products: default
BLAS/LAPACK: /usr/lib/libopenblasp-r0.2.19.so

locale:
  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C               LC_TIME=en_US.UTF-8       
[4] LC_COLLATE=en_US.UTF-8     LC_MONETARY=en_US.UTF-8    LC_MESSAGES=C             
[7] LC_PAPER=en_US.UTF-8       LC_NAME=C                  LC_ADDRESS=C              
[10] LC_TELEPHONE=C             LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
  [1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
  [1] Ruchardet_0.0-3 shiny_1.0.3    

loaded via a namespace (and not attached):
  [1] compiler_3.4.0  R6_2.2.2        htmltools_0.3.6 tools_3.4.0     Rcpp_0.12.11   
[6] jsonlite_1.5    digest_0.6.12   xtable_1.8-2    httpuv_1.3.3    mime_0.5       

---

在Firefox上，这看起来很适合我。您使用的是什么web浏览器？检查网页内容，查看如何返回汉字。您的web浏览器可能与RStudio的web浏览器窗口的解释不同。原因不是浏览器。谢谢您的回复。我刚找到它。这是语言环境。我通过在Shining server中获取Sys.getlocale的结果找到了它。它没有rstudio中的en_US.UTF-8语言环境。因此，我将Sys.setlocalecategory=LC_ALL，locale=en_US.UTF-8添加到Rprofile.site文件中。现在没事了。

R version 3.4.0 (2017-04-21)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Debian GNU/Linux 9 (stretch)

Matrix products: default
BLAS/LAPACK: /usr/lib/libopenblasp-r0.2.19.so

locale:
  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C               LC_TIME=en_US.UTF-8       
[4] LC_COLLATE=en_US.UTF-8     LC_MONETARY=en_US.UTF-8    LC_MESSAGES=C             
[7] LC_PAPER=en_US.UTF-8       LC_NAME=C                  LC_ADDRESS=C              
[10] LC_TELEPHONE=C             LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
  [1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
  [1] Ruchardet_0.0-3 shiny_1.0.3    

loaded via a namespace (and not attached):
  [1] compiler_3.4.0  R6_2.2.2        htmltools_0.3.6 tools_3.4.0     Rcpp_0.12.11   
[6] jsonlite_1.5    digest_0.6.12   xtable_1.8-2    httpuv_1.3.3    mime_0.5